Optical imaging lens

Abstract

The utility model discloses an optical imaging lens. The zoom lens comprises a first lens with negative focal power, a second lens with negative focal power, a third lens with negative focal power, a fourth lens with positive focal power, a fifth lens with negative focal power, a sixth lens with positive focal power and a seventh lens with positive focal power or negative focal power in sequence from an object side to an image side along an optical axis, the first lens has positive focal power or negative focal power, the eighth lens has positive focal power or negative focal power, the ninth lens has positive focal power or negative focal power, the tenth lens has positive focal power, and the eleventh lens has positive focal power or negative focal power. Wherein the object side surface of the first lens is a convex surface, and the image side surface is a concave surface; the fifth lens element has a concave object-side surface and a convex image-side surface.

Description

Technical Field

[0001] The present application relates to the field of optical elements, and in particular, to an optical imaging lens. Background Art

[0002] With the development of optical imaging lenses, the demand for lenses in fields such as panoramic monitoring, drones, sports cameras and automotive lenses continues to increase. At the same time, people have put forward higher requirements for optical imaging lenses.

[0003] However, the following problems still exist in existing optical imaging lenses: 1) The field of view of the optical imaging lens is small, and the target range that can be captured is small; 2) The total length is long and the adaptability is poor; 3) It is impossible to achieve high resolution while taking into account the effect of a large target surface; 4) In order to ensure good thermal stability, existing optical imaging lenses use too many materials with stable thermal expansion coefficients, or use too many lenses, resulting in excessively high costs and poor market competitiveness. Utility Model Content

[0004] The present application provides an optical imaging lens, which comprises, in order from the object side to the image side along the optical axis: a first lens element having negative optical power, a second lens element having negative optical power, a third lens element having negative optical power, a fourth lens element having positive optical power, a fifth lens element having negative optical power, a sixth lens element having positive optical power, a seventh lens element having positive or negative optical power, an eighth lens element having positive or negative optical power, a ninth lens element having positive or negative optical power, a tenth lens element having positive optical power, and an eleventh lens element having positive or negative optical power; wherein the object-side surface of the first lens element is convex, and the image-side surface is concave; and the object-side surface of the fifth lens element is concave, and the image-side surface is convex.

[0005] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: -5.5≤f2 / f≤-1.3, where f2 is the effective focal length of the second lens, and f is the total effective focal length of the optical imaging lens.

[0006] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: -9.8≤f3 / f≤-1.0, where f3 is the effective focal length of the third lens, and f is the total effective focal length of the optical imaging lens.

[0007] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: 0.6≤f4 / f≤1.2, where f4 is the effective focal length of the fourth lens, and f is the total effective focal length of the optical imaging lens.

[0008] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: -4.3≤f5 / f≤-1.9, where f5 is the effective focal length of the fifth lens, and f is the total effective focal length of the optical imaging lens.

[0009] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: -3≤f5 / f6≤-1, where f5 is the effective focal length of the fifth lens, and f6 is the effective focal length of the sixth lens.

[0010] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: -2.0≤f7 / f8≤-1.0, where f7 is the effective focal length of the seventh lens, and f8 is the effective focal length of the eighth lens.

[0011] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: -0.4≤f10 / f11≤5.5, where f10 is the effective focal length of the tenth lens, and f11 is the effective focal length of the eleventh lens.

[0012] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: -1.0≤f12 / f≤-0.4, where f12 is the combined focal length of the first lens and the second lens, and f is the total effective focal length of the optical imaging lens.

[0013] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: 0.9≤f34 / f≤1.9, wherein f34 is the combined focal length of the third lens and the fourth lens, and f is the total effective focal length of the optical imaging lens.

[0014] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: -2.3≤f345 / fa≤-0.5, where f345 is the combined focal length of the third lens, the fourth lens, and the fifth lens, and fa is the combined focal length of the first lens to the fifth lens.

[0015] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: 0.6≤f6 / fb≤1.0, where f6 is the effective focal length of the sixth lens, and fb is the combined focal length of the sixth lens to the eleventh lens.

[0016] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: 0.5≤|R112 / f11|≤8.9, where R112 is the curvature radius of the image-side surface of the eleventh lens, and f11 is the effective focal length of the eleventh lens.

[0017] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: -2.7≤fa / f≤-0.9, where fa is the combined focal length of the first to fifth lenses, and f is the total effective focal length of the optical imaging lens.

[0018] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: 1.6≤fb / f≤2.1, wherein fb is the combined focal length of the sixth to eleventh lenses, and f is the total effective focal length of the optical imaging lens.

[0019] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: -1.5≤fa / fb≤-0.5, where fa is the combined focal length of the first to fifth lenses, and fb is the combined focal length of the sixth to eleventh lenses.

[0020] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: 0.5° / mm 2 ≤FOV / H / D≤0.8° / mm 2 , where FOV is the maximum field of view of the optical imaging lens, H is the image height corresponding to the maximum field of view of the optical imaging lens, and D is the maximum aperture of the optical imaging lens.

[0021] According to an exemplary embodiment of the present application, the optical imaging lens satisfies the following conditions: 9.2 mm ≤ TTL × f / H ≤ 10.1 mm, where TTL is the on-axis distance from the object-side surface of the first lens element to the imaging surface of the optical imaging lens, f is the total effective focal length of the optical imaging lens, and H is the image height corresponding to the maximum field of view angle of the optical imaging lens.

[0022] According to an exemplary embodiment of the present application, the optical imaging lens satisfies: 0.3≤BFL / f≤0.8, where BFL is the distance from the image-side surface of the eleventh lens element to the imaging plane of the optical imaging lens on the optical axis, and f is the total effective focal length of the optical imaging lens.

[0023] According to an exemplary embodiment of the present application, the optical imaging lens satisfies at least one of the following: 5.8≤|Vd3-Vd4|≤7.6; 32.8≤|Vd7-Vd8|≤50.5; wherein Vd3 is the Abbe number of the third lens element, Vd4 is the Abbe number of the fourth lens element, Vd7 is the Abbe number of the seventh lens element, and Vd8 is the Abbe number of the eighth lens element.

[0024] According to an exemplary embodiment of the present application, the optical imaging lens satisfies at least one of the following: -5.4≤f2 / f≤-1.4; -0.95≤f12 / f≤-0.45; -3.26≤f3 / f≤-1.1; 0.7≤f4 / f≤0.9; 1.0≤f34 / f≤1.8; -4.25≤f5 / f≤-2; -2.2≤f345 / f≤-0.5 5; -2.9≤f5 / f6≤-1.2; 0.75≤f6 / fb≤0.9; -2.0≤f7 / f8≤-1.5; -0.3≤f10 / f11≤5.3; 0. 55≤|R112 / f11|≤8.8; -2.55≤fa / f≤-1; 1.7≤fb / f≤2.0; -1.4≤fa / fb≤-0.55; 0.6° / mm 2 ≤FOV / H / D≤0.7° / mm 2; 9.3mm = TTL x f / H = 10mm; 0.4 = BFL / f = 0.7; 5.9 = |Vd3-Vd4| = 7.5; 43 = |Vd7-Vd8| = 50.4; wherein, f is the total effective focal length of the optical imaging lens, f2 is the effective focal length of the second lens, f12 is the combined focal length of the first lens and the second lens, f3 is the effective focal length of the third lens, f4 is the effective focal length of the fourth lens, f34 is the combined focal length of the third lens and the fourth lens, f5 is the effective focal length of the fifth lens, f345 is the combined focal length of the third lens, the fourth lens and the fifth lens, fa is the combined focal length of the first lens to the fifth lens, f6 is the effective focal length of the sixth lens, f7 is the effective focal length of the seventh lens, f8 is the effective focal length of the eighth lens, f10 is the effective focal length of the tenth lens, f11 is the effective focal length of the eleventh lens, fb is the combined focal length of the sixth lens to the eleventh lens, R112 is the radius of curvature of the image side surface of the eleventh lens, FOV is the maximum field of view angle of the optical imaging lens, H is the image height corresponding to the maximum field of view angle of the optical imaging lens, D is the maximum aperture of the optical imaging lens, TTL is the on-axis distance from the object side surface of the first lens to the imaging surface of the optical imaging lens, BFL is the distance from the image side surface of the eleventh lens to the imaging surface of the optical imaging lens on the optical axis, Vd3 is the Abbe number of the third lens, Vd4 is the Abbe number of the fourth lens, Vd7 is the Abbe number of the seventh lens, and Vd8 is the Abbe number of the eighth lens.

[0025] According to the example embodiments of the present application, the image side surface of the second lens is a concave surface.

[0026] According to the example embodiments of the present application, the object side surface of the third lens is a convex surface, and the image side surface is a concave surface.

[0027] According to the example embodiments of the present application, the object side surface of the fourth lens is a convex surface, and the image side surface is a convex surface.

[0028] According to the example embodiments of the present application, the object side surface of the sixth lens is a convex surface, and the image side surface is a convex surface.

[0029] According to the example embodiments of the present application, the image side surface of the ninth lens is a concave surface.

[0030] According to the example embodiments of the present application, the image side surface of the tenth lens is a convex surface.

[0031] The optical imaging lens of the present application has at least one of the beneficial effects of large field of view angle, short total length, high resolution, large target surface, etc. by reasonably setting the number and optical power of the lenses. BRIEF DESCRIPTION OF DRAWINGS

[0032] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0033] Figure 1 is a schematic structural diagram of an optical imaging lens according to Example 1 of the present application;

[0034] Figure 2 is a schematic structural diagram of an optical imaging lens according to Example 2 of the present application;

[0035] Figure 3 is a schematic structural diagram of an optical imaging lens according to Example 3 of the present application;

[0036] Figure 4 is a schematic structural diagram of an optical imaging lens according to Example 4 of the present application;

[0037] Figure 5 2 is a schematic structural diagram of an optical imaging lens according to Example 5 of the present application. DETAILED DESCRIPTION

[0038] For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely descriptions of exemplary embodiments of the present application and are not intended to limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements. The expression "and / or" includes any and all combinations of one or more of the associated listed items.

[0039] It should be noted that in this specification, the terms "first," "second," "third," etc., are used solely to distinguish one feature from another and do not limit the features. Thus, the first lens discussed below could also be referred to as the second lens or the third lens without departing from the teachings of this application.

[0040] In the drawings, the thickness, size, and shape of the lenses are slightly exaggerated for ease of illustration. Specifically, the shapes of the spherical and aspherical surfaces shown in the drawings are provided by way of example. That is, the shapes of the spherical and aspherical surfaces are not limited to those shown in the drawings. The drawings are for illustration only and are not drawn strictly to scale.

[0041] In this article, the paraxial region refers to the area near the optical axis. If a lens surface is convex and the location of the convex surface is undefined, it means that the lens surface is convex at least in the paraxial region. If a lens surface is concave and the location of the concave surface is undefined, it means that the lens surface is concave at least in the paraxial region. The surface of each lens closest to the subject is called the object-side surface of the lens, and the surface of each lens closest to the imaging plane is called the image-side surface of the lens.

[0042] It should also be understood that the terms "including," "having," "comprising," and the like, when used in this specification, indicate the presence of the stated features, elements, and / or components, but do not preclude the presence or addition of one or more other features, elements, components, and / or combinations thereof. In addition, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire list of features rather than modifying the individual elements in the list. In addition, when describing embodiments of the present application, "may" is used to mean "one or more embodiments of the present application." Furthermore, the term "exemplary" is intended to refer to an example or illustration.

[0043] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art to which this application belongs. It should also be understood that terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and will not be interpreted in an idealized or overly formal sense unless expressly defined as such herein.

[0044] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0045] The optical imaging lens according to an exemplary embodiment of the present application may include eleven lenses having optical power in order from the object side to the image side along the optical axis, namely, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens, a ninth lens, a tenth lens, and an eleventh lens.

[0046] In an exemplary embodiment, the first lens element of the optical imaging lens has negative optical power. The object-side surface of the first lens element is convex, and the image-side surface is concave. This configuration effectively converges light rays with a wide field of view, reducing the angle of incidence of light rays on the object-side surface of the second lens element. This effectively prevents higher-order aberrations in subsequent optical lenses caused by excessively large angles of incidence, thereby improving the lens's resolution.

[0047] In an exemplary embodiment, the second lens element of the optical imaging lens has negative optical power. The object-side surface of the second lens element is convex or concave, and the image-side surface is concave. This configuration helps control the direction of light and achieves a smooth transition.

[0048] In an exemplary embodiment, the second lens of the optical imaging lens is an aspherical lens. The use of an aspherical surface is beneficial for better correction of aberrations in the entire field of view and improving the resolution of the lens.

[0049] In an exemplary embodiment, the third lens element of the optical imaging lens has negative optical power. Its object-side surface is convex, and its image-side surface is concave. The third lens element, in conjunction with the fourth lens element, which has positive optical power, smoothly transmits light to the optical system behind the lens, facilitating better correction of spherical aberration, improving the lens's resolution, and reducing the lens's sensitivity to tolerances.

[0050] In an exemplary embodiment, the fourth lens element of the optical imaging lens has positive optical power. Its object-side surface and image-side surface are convex. The fourth lens element, in conjunction with the third lens element, which has negative optical power, facilitates better correction of spherical aberration. Furthermore, the fourth lens element, in conjunction with the fifth lens element located behind it, effectively corrects axial chromatic aberration and reduces lens tolerance sensitivity, thereby improving lens production yield.

[0051] In an exemplary embodiment, the third lens and the fourth lens constitute a doublet lens.

[0052] In an exemplary embodiment, the fifth lens element of the optical imaging lens has negative optical power. Its object-side surface is concave, and its image-side surface is convex. The fifth lens element is an aspherical lens. Working in conjunction with the fourth lens element, which has positive optical power, the fifth lens element facilitates better correction of spherical aberration. Furthermore, working in conjunction with the sixth lens element, which has positive optical power and a convex object-side surface, the fifth lens element effectively corrects axial chromatic aberration and controls the direction of light before and after the aperture stop, ensuring a smooth transition.

[0053] In an exemplary embodiment, the sixth lens element of the optical imaging lens has positive optical power. Its object-side surface and image-side surface are convex. The sixth lens element can be made of a material with thermal expansion stability, which facilitates thermal compensation of the lens. Furthermore, the sixth lens element, in conjunction with the fifth lens element, helps correct residual astigmatism and axial chromatic aberration of the optical system.

[0054] In an exemplary embodiment, the seventh lens element of the optical imaging lens has positive or negative focal power. When the object-side surface of the seventh lens element is convex, the image-side surface is convex or concave; when the object-side surface of the seventh lens element is concave, the image-side surface is concave. Exemplarily, the seventh lens element can be made of a material with a low refractive index and a high Abbe number. This configuration effectively corrects vertical chromatic aberration of the lens element, improving imaging quality.

[0055] In an exemplary embodiment, the eighth lens element of the optical imaging lens has positive or negative optical power, and the object-side surface of the eighth lens element is convex, and the image-side surface is convex; alternatively, the object-side surface of the eighth lens element is concave, and the image-side surface is concave.

[0056] In an exemplary embodiment, the seventh and eighth lenses form a doublet lens with coordinated positive and negative optical powers. That is, when the seventh lens has positive optical power, the eighth lens has negative optical power; alternatively, when the seventh lens has negative optical power, the eighth lens has positive optical power. This arrangement facilitates smooth light transmission, reduces lens tolerance sensitivity, and effectively improves lens production yield. It also effectively corrects vertical chromatic aberration, enhancing lens imaging quality.

[0057] In an exemplary embodiment, the ninth lens element of the optical imaging lens has positive or negative focal power. The object-side surface of the ninth lens element is convex or concave, and the image-side surface is concave. This configuration effectively controls light distribution, converges the angle of the chief ray, and shares the focal power of the subsequent tenth and eleventh lenses, ensuring a smooth light transition.

[0058] In an exemplary embodiment, the tenth lens element of the optical imaging lens has positive optical power. The object-side surface of the tenth lens element is convex or concave, and the image-side surface is convex. The tenth lens element may be an aspherical lens. This arrangement effectively corrects spherical aberration in the rear optical system and, in conjunction with the eleventh lens element, effectively corrects axial chromatic aberration, improving the imaging quality of the lens.

[0059] In an exemplary embodiment, the eleventh lens of the optical imaging lens has positive or negative optical power. When the object-side surface of the eleventh lens is convex, the image-side surface is convex or concave; alternatively, when the object-side surface of the eleventh lens is concave, the image-side surface is convex. By properly setting the optical power and lens shape of the eleventh lens, the direction of light can be effectively controlled, effectively lowering the exit angle of light passing through the eleventh lens, and reducing the chief ray angle to better match the chip and the chip CRA (Chief Ray Angle) curve requirements. At the same time, the eleventh lens is an aspherical lens, which can effectively correct the residual aberration of the lens and improve the resolution of the lens.

[0060] In an exemplary embodiment, the optical imaging lens satisfies the following conditions: -5.5 ≤ f2 / f ≤ -1.3, where f2 is the effective focal length of the second lens element, and f is the total effective focal length of the optical imaging lens. By properly controlling the effective focal length of the second lens element, light rays with a wide field of view can be effectively collected, reducing the angle of incidence of light rays on the object side of the second lens element. This effectively prevents high-order aberrations in the rear optical system caused by excessively large angles of incidence, thereby improving the lens's resolution. Alternatively, the optical imaging lens may satisfy the following conditions: -5.4 ≤ f2 / f ≤ -1.4, further enhancing the lens's resolution.

[0061] In exemplary embodiments, the optical imaging lens satisfies: -9.8≤f3 / f≤-1.0, where f3 is the effective focal length of the third lens, and f is the total effective focal length of the optical imaging lens. By reasonably configuring the effective focal length of the third lens, the trend of light can be effectively controlled, so that the light has a diverging effect, which is conducive to making as many large-angle light rays as possible enter the rear optical system and improving the relative illumination of the lens. For example, the optical imaging lens can also satisfy: -3.26≤f3 / f≤-1.1, which is more conducive to improving the relative illumination of the lens.

[0062] In exemplary embodiments, the optical imaging lens satisfies: 0.6≤f4 / f≤1.2, where f4 is the effective focal length of the fourth lens, and f is the total effective focal length of the optical imaging lens. By reasonably configuring the effective focal length of the fourth lens, the spherical aberration of the lens can be corrected, and the resolution of the lens can be improved. For example, the optical imaging lens can also satisfy: 0.7≤f4 / f≤0.9, which is more conducive to improving the resolution of the lens.

[0063] In exemplary embodiments, the optical imaging lens satisfies: -4.3≤f5 / f≤-1.9, where f5 is the effective focal length of the fifth lens, and f is the total effective focal length of the optical imaging lens. By reasonably configuring the effective focal length of the fifth lens, the spherical aberration and on-axis chromatic aberration of the lens can be corrected, and the resolution of the lens can be improved. For example, the optical imaging lens can also satisfy: -4.25≤f5 / f≤-2, which is more conducive to improving the resolution of the lens.

[0064] In exemplary embodiments, the optical imaging lens satisfies: -3≤f5 / f6≤-1, where f5 is the effective focal length of the fifth lens, and f6 is the effective focal length of the sixth lens. By reasonably allocating the effective focal lengths of the fifth lens and the sixth lens, the spherical aberration and on-axis chromatic aberration of the lens can be effectively corrected, the resolution of the lens can be improved, and the temperature drift can be better eliminated, which helps to achieve thermal compensation of the lens and thus makes the lens have good temperature performance. For example, the optical imaging lens can also satisfy: -2.9≤f5 / f6≤-1.2, which is more conducive to making the lens have good temperature performance.

[0065] In exemplary embodiments, the optical imaging lens satisfies: -2.0≤f7 / f8≤-1.0, where f7 is the effective focal length of the seventh lens, and f8 is the effective focal length of the eighth lens. By reasonably configuring the effective focal lengths of the seventh lens and the eighth lens, the positive and negative focal lengths are matched, which is conducive to balancing the astigmatism generated by the rear optical system and improving the resolution of the lens. For example, the optical imaging lens can also satisfy: -2.0≤f7 / f8≤-1.5, which is more conducive to improving the resolution of the lens.

[0066] In an exemplary embodiment, the optical imaging lens satisfies the following conditions: -0.4 ≤ f10 / f11 ≤ 5.5, where f10 is the effective focal length of the tenth lens element and f11 is the effective focal length of the eleventh lens element. By properly configuring the effective focal lengths of the tenth and eleventh lenses, light distribution can be effectively controlled, facilitating the realization of a longer focal length. Alternatively, the optical imaging lens may satisfy the following conditions: -0.3 ≤ f10 / f11 ≤ 5.3, further facilitating the realization of a longer focal length.

[0067] In an exemplary embodiment, the optical imaging lens satisfies the following conditions: -1.0 ≤ f12 / f ≤ -0.4, where f12 is the combined focal length of the first and second lenses, and f is the total effective focal length of the optical imaging lens. By properly configuring the combined focal lengths of the first and second lenses, incident light at wide angles can enter the optical system, effectively expanding the lens's field of view (FOV) to ≥ 164°. This also effectively avoids aberrations and improves the relative illumination of the lens. Exemplarily, the optical imaging lens may also satisfy the following conditions: -0.95 ≤ f12 / f ≤ -0.45, further improving the relative illumination of the lens.

[0068] In an exemplary embodiment, the optical imaging lens satisfies the following conditions: 0.9 ≤ f34 / f ≤ 1.9, where f34 is the combined focal length of the third and fourth lenses, and f is the total effective focal length of the optical imaging lens. Properly configuring the combined focal lengths of the third and fourth lenses facilitates controlling the trajectory of light, ensuring smooth incidence on the object-side surface of the fifth lens. This helps reduce the lens's sensitivity to tolerances, while also facilitating better correction of aberrations in the central field of view and improving the lens's resolution. Alternatively, the optical imaging lens can satisfy the following conditions: 1.0 ≤ f34 / f ≤ 1.8, further reducing the lens's sensitivity to tolerances and improving its resolution.

[0069] In an exemplary embodiment, the optical imaging lens satisfies the following conditions: -2.3 ≤ f345 / fa ≤ -0.5, where f345 is the combined focal length of the third, fourth, and fifth lenses, and fa is the combined focal length of the first through fifth lenses. By properly controlling the combined focal lengths of the third, fourth, and fifth lenses, and the first through fifth lenses, the trajectory of light can be effectively controlled, facilitating better correction of spherical aberration and axial chromatic aberration of the lens. It also enables smooth light transitions, effectively reducing the lens's tolerance sensitivity and improving lens production yield. Exemplarily, the optical imaging lens may also satisfy the following conditions: -2.2 ≤ f345 / fa ≤ -0.55, further facilitating reduced lens tolerance sensitivity.

[0070] In an exemplary embodiment, the optical imaging lens satisfies the following conditions: 0.6 ≤ f6 / fb ≤ 1.0, where f6 is the effective focal length of the sixth lens element, and fb is the combined focal length of the sixth through eleventh lenses. By rationally configuring the effective focal length of the sixth lens element and the combined focal lengths of the sixth through eleventh lenses, light is smoothly transmitted, lens tolerance sensitivity is reduced, and lens production yield is improved. Exemplarily, the optical imaging lens may also satisfy the following conditions: 0.75 ≤ f6 / fb ≤ 0.9, further reducing lens tolerance sensitivity.

[0071] In an exemplary embodiment, the optical imaging lens satisfies the following conditions: 0.5 ≤ |R112 / f11| ≤ 8.9, where R112 is the radius of curvature of the image-side surface of the eleventh lens element, and f11 is the effective focal length of the eleventh lens element. By properly controlling the radius of curvature of the image-side surface of the eleventh lens element and the effective focal length of the eleventh lens element, the angle of incidence of light passing through the eleventh lens element can be effectively reduced, thereby reducing the angle of the principal ray, thereby better matching the chip and its CRA curve requirements, improving the lens's tolerance and manufacturability, and enhancing the lens's resolution. Exemplarily, the optical imaging lens may also satisfy the following conditions: 0.55 ≤ |R112 / f11| ≤ 8.8, further contributing to improved lens resolution.

[0072] In an exemplary embodiment, the optical imaging lens satisfies the following conditions: -2.7 ≤ fa / f ≤ -0.9, where fa is the combined focal length of the first through fifth lenses, and f is the total effective focal length of the optical imaging lens. By properly controlling the combined focal length of the first through fifth lenses, the image-side principal plane of the optical system can be brought closer to the imaging plane, achieving a reverse telephoto effect. This effectively increases the back focal length of the lens, facilitating assembly of the lens module. Furthermore, lengthening the back focal length can help reduce the energy of ghost images generated by central reflections from the lens and color filters, improving the imaging quality and resolution of the lens. Exemplarily, the optical imaging lens may also satisfy the following conditions: -2.55 ≤ fa / f ≤ -1, further contributing to improved lens resolution.

[0073] In an exemplary embodiment, the optical imaging lens satisfies the following conditions: 1.6 ≤ fb / f ≤ 2.1, where fb is the combined focal length of the sixth through eleventh lenses, and f is the total effective focal length of the optical imaging lens. By properly controlling the combined focal length of the sixth through eleventh lenses, a longer focal length can be achieved. Alternatively, the optical imaging lens may satisfy the following conditions: 1.7 ≤ fb / f ≤ 2.0, further facilitating the achievement of a longer focal length.

[0074] In an exemplary embodiment, the optical imaging lens satisfies the following conditions: -1.5 ≤ fa / fb ≤ -0.5, where fa is the combined focal length of the first through fifth lenses, and fb is the combined focal length of the sixth through eleventh lenses. By rationally allocating the combined focal lengths of the first through fifth lenses and the sixth through eleventh lenses, the overall light distribution of the optical system is controlled, resulting in a smoother light transition, reduced lens tolerance sensitivity, and improved imaging quality. Exemplarily, the optical imaging lens may also satisfy the following conditions: -1.4 ≤ fa / fb ≤ -0.55, further reducing lens tolerance sensitivity.

[0075] In an exemplary embodiment, the optical imaging lens satisfies: 0.5° / mm 2 ≤FOV / H / D≤0.8° / mm 2 , where FOV is the maximum field of view of the optical imaging lens, H is the image height corresponding to the maximum field of view of the optical imaging lens, and D is the maximum aperture of the optical imaging lens. By controlling the ratio of the field of view angle, image height, and maximum aperture, the viewpoint position can be effectively controlled to ensure that the aperture meets the design requirements and that the lens has a reasonable field of view when corresponding to different sensors. For example, the optical imaging lens can also meet the following requirements: 0.6° / mm 2 ≤FOV / H / D≤0.7° / mm 2 , which is more conducive to ensuring that the aperture meets the design requirements and that the lens has a reasonable field of view when corresponding to different sensors.

[0076] In an exemplary embodiment, the optical imaging lens satisfies the following conditions: 9.2mm ≤ TTL × f / H ≤ 10.1mm, where TTL is the on-axis distance from the object-side surface of the first lens element to the imaging plane of the optical imaging lens, f is the total effective focal length of the optical imaging lens, and H is the image height corresponding to the maximum field of view of the optical imaging lens. Controlling these conditions facilitates a more compact structure of the entire lens, facilitating miniaturization. Exemplarily, the optical imaging lens may also satisfy the following conditions: 9.3mm ≤ TTL × f / H ≤ 10mm, further facilitating miniaturization.

[0077] In an exemplary embodiment, the optical imaging lens satisfies the following conditions: 0.3 ≤ BFL / f ≤ 0.8, where BFL is the distance on the optical axis from the image-side surface of the eleventh lens element to the imaging plane of the optical lens, and f is the total effective focal length of the optical imaging lens. While enabling miniaturization, a longer back focus helps reserve space for the installation of optical components, facilitates lens assembly, avoids interference, and improves the lens assembly yield. Exemplarily, the optical imaging lens may also satisfy the following conditions: 0.4 ≤ BFL / f ≤ 0.7, further contributing to an improved lens assembly yield.

[0078] In an exemplary embodiment, the optical imaging lens satisfies at least one of the following conditions: 5.8 ≤ |Vd3 - Vd4| ≤ 7.6; 32.8 ≤ |Vd7 - Vd8| ≤ 50.5. Vd3 is the Abbe number of the third lens element, Vd4 is the Abbe number of the fourth lens element, Vd7 is the Abbe number of the seventh lens element, and Vd8 is the Abbe number of the eighth lens element. By properly selecting the lens materials for the third, fourth, seventh, and eighth lenses, vertical chromatic aberration of the lens can be effectively corrected, purple fringing can be avoided, and imaging quality can be improved. Temperature-dependent shifts in the lens back focus can also be suppressed, thereby improving lens stability and enhancing imaging quality. Exemplarily, the third, fourth, seventh, and eighth lenses are made of glass. Exemplarily, the optical imaging lens may also satisfy at least one of the following conditions: 5.9 ≤ |Vd3 - Vd4| ≤ 7.5; 43 ≤ |Vd7 - Vd8| ≤ 50.4, further facilitating correction of vertical chromatic aberration.

[0079] In an exemplary embodiment, the distance TTL from the object-side surface of the first lens element to the imaging surface of the optical imaging lens element on the optical axis of the optical imaging lens element of the present application may satisfy the following condition: TTL≤31.48 mm, thereby miniaturizing the lens element.

[0080] In an exemplary embodiment, the image height H corresponding to the maximum field of view of the optical imaging lens of the present application can satisfy the following conditions: 15mm≤H≤18mm. Furthermore, H can satisfy the following conditions: 16.3mm≤H≤16.55mm. This allows for a large target surface of the lens.

[0081] In an exemplary embodiment, the aperture number Fno of the optical imaging lens of the present application satisfies: Fno≤2.82. Further, Fno may satisfy: 2.81≤Fno≤2.82.

[0082] In an exemplary embodiment, the maximum field of view (FOV) of the optical imaging lens of the present application is ≥164°.

[0083] In an exemplary embodiment, the present application uses a combination of spherical lenses and aspherical lenses, which helps reduce the difficulty of lens processing; at the same time, through the combination of materials, an athermal design can be achieved. The present application does not specifically limit the specific number of spherical lenses and aspherical lenses. When focusing on imaging quality, the number of aspherical lenses can be increased, and even all lenses can use aspherical lenses. The characteristic of an aspherical lens is that the curvature changes continuously from the center of the lens to the periphery. Unlike a spherical lens with a constant curvature from the center to the periphery of the lens, an aspherical lens has a better curvature radius characteristic and has the advantages of improving distortion aberration and improving astigmatism aberration. After using an aspherical lens, the aberration that occurs during imaging can be eliminated as much as possible, thereby improving the resolution and imaging quality of the lens. Exemplarily, the second lens, the fifth lens, the tenth lens, and the eleventh lens can be aspherical lenses; or, the second lens, the fifth lens, the ninth lens, the tenth lens, and the eleventh lens can be aspherical lenses.

[0084] The optical imaging lens of the present application can utilize an all-glass lens structure. This glass structure can suppress the shift in back focus due to temperature changes, thereby improving system stability. Furthermore, the use of glass prevents blurring caused by high and low temperature fluctuations in the operating environment, ensuring normal operation of the lens while facilitating athermalization. It can also effectively correct system chromatic aberration and enhance lens resolution. The all-glass optical imaging lens of the present application has a wide temperature range, maintaining stable optical performance within a range of -40°C to 80°C.

[0085] The optical imaging lens of the present application may further include an aperture for limiting the light beam. This aperture helps to focus the light entering the optical lens, reducing the maximum aperture of the optical lens and lowering the system's assembly sensitivity, thereby further improving the imaging quality of the optical lens. It should be noted that the aperture can be positioned between or to one side of any lens as needed. For example, the aperture is positioned between the fifth and sixth lenses.

[0086] The optical imaging lens of the present application has excellent resolution and can be used with a camera to achieve high resolution (50 million pixels).

[0087] Optionally, in other alternative exemplary embodiments, the optical imaging lens may further include a filter for correcting color deviation and / or a protective glass for protecting the photosensitive element located on the imaging surface.

[0088] However, those skilled in the art will appreciate that, without departing from the technical solutions claimed in this application, the number of lenses comprising the optical imaging lens may be varied to achieve the various results and advantages described herein. For example, while the embodiments describe an optical imaging lens using eleven lenses as an example, the optical imaging lens is not limited to eleven lenses. If desired, the optical imaging lens may also include other numbers of lenses.

[0089] Specific embodiments of the optical imaging lens applicable to the above-mentioned embodiments will be further described below with reference to the accompanying drawings.

[0090] Example 1

[0091] Figure 1 FIG. 1 shows a schematic structural diagram of an optical imaging lens according to Example 1 of the present application. Figure 1 As shown, the optical imaging lens includes, from the object side to the image side along the optical axis, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a seventh lens L7, an eighth lens L8, a ninth lens L9, a tenth lens L10, and an eleventh lens L11.

[0092] The first lens L1 has negative optical power, with its object-side surface S1 being convex and its image-side surface S2 being concave. The second lens L2 has negative optical power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens L3 has negative optical power, with its object-side surface S5 being convex and its image-side surface S6 being concave. The fourth lens L4 has positive optical power, with its object-side surface S6 being convex and its image-side surface S7 being convex. The fifth lens L5 has negative optical power, with its object-side surface S8 being concave and its image-side surface S9 being convex. The sixth lens L6 has positive optical power, with its object-side surface S10 being convex and its image-side surface S11 being convex. The seventh lens L7 has negative optical power, with its object-side surface S12 being convex and its image-side surface S13 being concave. The eighth lens L8 has positive optical power, with its object-side surface S13 being convex and its image-side surface S14 being convex. The ninth lens element L9 has negative optical power, with its object-side surface S15 being concave and its image-side surface S16 being concave. The tenth lens element L10 has positive optical power, with its object-side surface S17 being convex and its image-side surface S18 being convex. The eleventh lens element L11 has positive optical power, with its object-side surface S19 being convex and its image-side surface S20 being concave.

[0093] The third lens L3 and the fourth lens L4 form a doublet lens, and the seventh lens L7 and the eighth lens L8 form a doublet lens.

[0094] The optical lens further includes a stop STO, which may be disposed between the fifth lens L5 and the sixth lens L6.

[0095] The optical lens may further include a filter (not shown) having an object side surface and an image side surface and / or a protective glass CG having an object side surface S21 and an image side surface S22. The filter may be used to correct color deviation, and the protective glass CG may be used to protect the image sensor chip located at the imaging surface. The light from the object passes through each surface S1 to S22 in sequence and is finally imaged on the imaging surface IMA. It should be noted that the surfaces S1 to S22 are Figure 1 Not shown.

[0096] Table 1 shows the basic parameters of the optical imaging lens of Example 1, wherein the units of curvature radius and thickness / distance are all millimeters (mm).

[0097] Table 1

[0098]

[0099]

[0100] In Example 1, the object-side surface and the image-side surface of the second lens element, the fifth lens element, the ninth lens element, the tenth lens element, and the eleventh lens element are all aspherical surfaces. The surface shape of each aspherical lens can be defined by, but is not limited to, the following aspherical surface formula:

[0101]

[0102] Where x is the distance from the vertex of the aspheric surface at a height of h along the optical axis; c is the paraxial curvature of the aspheric surface, c = 1 / R (i.e., the paraxial curvature c is the reciprocal of the radius of curvature R in Table 1 above); k is the conic coefficient; Ai is the correction coefficient for the i-th order of the aspheric surface. Table 2 below lists the conic coefficient k and the higher-order coefficients A4, A6, A8, A10, A12, A14, and A16 that can be used for each aspheric mirror surface in Example 1.

[0103] Table 2

[0104] Face number k A4 A6 A8 A10 A12 A14 A16 S3 0.00 6.53E-04 -2.49E-04 2.11E-05 -1.21E-06 3.10E-08 0 0 S4 -4.55 3.44E-04 -3.49E-04 3.38E-05 -2.24E-06 8.13E-08 0 0 S8 -4.00 2.54E-03 -1.99E-04 2.51E-06 9.53E-08 4.08E-08 -7.72E-09 3.82E-10 S9 21.56 8.34E-03 -2.98E-04 4.69E-05 -7.26E-06 1.08E-06 -1.04E-07 7.05E-09 S15 0.00 3.97E-03 -3.50E-05 -8.47E-06 -5.96E-07 1.75E-07 -1.17E-08 2.86E-10 S16 0.00 1.88E-03 3.05E-05 -2.74E-06 -5.62E-07 6.12E-08 -2.39E-09 3.49E-11 S17 0.00 -1.27E-03 5.08E-05 -5.09E-07 -1.08E-08 -1.03E-09 5.31E-11 -7.06E-13 S18 0.00 1.79E-03 -5.30E-05 1.13E-07 4.14E-08 -1.08E-09 5.99E-12 5.03E-14 S19 0.00 4.39E-04 -2.83E-05 5.57E-07 -3.41E-09 0 0 0 S20 0.00 7.61E-05 -3.32E-05 7.81E-07 -5.28E-09 0 0 0

[0105] Example 2

[0106] Figure 2 FIG. 1 shows a schematic structural diagram of an optical imaging lens according to Example 2 of the present application. Figure 2 As shown, the optical imaging lens includes, from the object side to the image side along the optical axis, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a seventh lens L7, an eighth lens L8, a ninth lens L9, a tenth lens L10 and an eleventh lens L11.

[0107] The first lens L1 has negative optical power, with its object-side surface S1 being convex and its image-side surface S2 being concave. The second lens L2 has negative optical power, with its object-side surface S3 being concave and its image-side surface S4 being concave. The third lens L3 has negative optical power, with its object-side surface S5 being convex and its image-side surface S6 being concave. The fourth lens L4 has positive optical power, with its object-side surface S6 being convex and its image-side surface S7 being convex. The fifth lens L5 has negative optical power, with its object-side surface S8 being concave and its image-side surface S9 being convex. The sixth lens L6 has positive optical power, with its object-side surface S10 being convex and its image-side surface S11 being convex. The seventh lens L7 has positive optical power, with its object-side surface S12 being convex and its image-side surface S13 being convex. The eighth lens L8 has negative optical power, with its object-side surface S13 being concave and its image-side surface S14 being concave. The ninth lens element L9 has positive optical power, with a convex object-side surface S15 and a concave image-side surface S16. The tenth lens element L10 has positive optical power, with a concave object-side surface S17 and a convex image-side surface S18. The eleventh lens element L11 has positive optical power, with a convex object-side surface S19 and a concave image-side surface S20.

[0108] The third lens L3 and the fourth lens L4 form a doublet lens, and the seventh lens L7 and the eighth lens L8 form a doublet lens.

[0109] The optical lens further includes a stop STO, which may be disposed between the fifth lens L5 and the sixth lens L6.

[0110] The optical lens may further include a filter (not shown) having an object side surface and an image side surface and / or a protective glass CG having an object side surface S21 and an image side surface S22. The filter may be used to correct color deviation, and the protective glass CG may be used to protect the image sensor chip located at the imaging surface. The light from the object passes through each surface S1 to S22 in sequence and is finally imaged on the imaging surface IMA. It should be noted that the surfaces S1 to S22 are Figure 2 Not shown.

[0111] Table 3 shows the basic parameters of the optical imaging lens of Example 2, wherein the units of curvature radius and thickness / distance are all millimeters (mm).

[0112] Table 3

[0113]

[0114] In Example 2, the object-side and image-side surfaces of the second, fifth, tenth, and eleventh lenses are all aspherical. The surface shape of each aspherical lens can be defined by, but is not limited to, formula (1) given in Example 1. Table 4 below lists the conic coefficient k and the higher-order coefficients A4, A6, A8, A10, A12, A14, and A16 that can be used for each aspherical lens surface in Example 2.

[0115] Table 4

[0116] Face number k A4 A6 A8 A10 A12 A14 A16 S3 0.00 1.39E-03 -2.10E-04 2.38E-05 -1.34E-06 2.15E-08 0 0 S4 0.37 2.35E-03 -1.64E-04 3.16E-05 -6.20E-07 -3.09E-08 0 0 S8 0.29 7.69E-03 -9.02E-05 1.94E-05 -9.87E-07 1.59E-08 1.18E-08 -5.43E-10 S9 2.30 4.79E-03 -6.06E-05 1.95E-05 -2.90E-06 2.16E-07 -1.56E-09 2.94E-10 S17 0.00 -2.47E-04 6.01E-05 -2.06E-06 2.98E-08 -1.71E-10 -5.15E-15 2.78E-14 S18 -0.35 8.61E-04 2.02E-05 8.85E-07 -5.60E-08 7.24E-10 1.59E-13 2.94E-14 S19 7.09 4.38E-04 -1.29E-05 1.82E-07 -1.18E-09 -1.15E-11 -2.22E-13 3.93E-15 S20 0.00 -8.09E-05 -1.54E-05 4.52E-07 -1.91E-09 -3.27E-11 -1.36E-13 2.54E-15

[0117] Example 3

[0118] Figure 3 FIG. 1 shows a schematic structural diagram of an optical imaging lens according to Example 3 of the present application. Figure 3 As shown, the optical imaging lens includes, from the object side to the image side along the optical axis, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a seventh lens L7, an eighth lens L8, a ninth lens L9, a tenth lens L10, and an eleventh lens L11.

[0119] The first lens L1 has negative optical power, with its object-side surface S1 being convex and its image-side surface S2 being concave. The second lens L2 has negative optical power, with its object-side surface S3 being convex and its image-side surface S4 being concave. The third lens L3 has negative optical power, with its object-side surface S5 being convex and its image-side surface S6 being concave. The fourth lens L4 has positive optical power, with its object-side surface S6 being convex and its image-side surface S7 being convex. The fifth lens L5 has negative optical power, with its object-side surface S8 being concave and its image-side surface S9 being convex. The sixth lens L6 has positive optical power, with its object-side surface S10 being convex and its image-side surface S11 being convex. The seventh lens L7 has positive optical power, with its object-side surface S12 being convex and its image-side surface S13 being convex. The eighth lens L8 has negative optical power, with its object-side surface S13 being concave and its image-side surface S14 being concave. The ninth lens element L9 has positive refractive power, with its object-side surface S15 being convex and its image-side surface S16 being concave. The tenth lens element L10 has positive refractive power, with its object-side surface S17 being convex and its image-side surface S18 being convex. The eleventh lens element L11 has negative refractive power, with its object-side surface S19 being concave and its image-side surface S20 being convex.

[0120] The third lens L3 and the fourth lens L4 form a doublet lens, and the seventh lens L7 and the eighth lens L8 form a doublet lens.

[0121] The optical lens further includes a stop STO, which may be disposed between the fifth lens L5 and the sixth lens L6.

[0122] The optical lens may further include a filter (not shown) having an object side surface and an image side surface and / or a protective glass CG having an object side surface S21 and an image side surface S22. The filter may be used to correct color deviation, and the protective glass CG may be used to protect the image sensor chip located at the imaging surface. The light from the object passes through each surface S1 to S22 in sequence and is finally imaged on the imaging surface IMA. It should be noted that the surfaces S1 to S22 are Figure 3 Not shown.

[0123] Table 5 shows the basic parameters of the optical imaging lens of Example 3, wherein the units of curvature radius and thickness / distance are all millimeters (mm).

[0124] Table 5

[0125]

[0126] In Example 3, the object-side and image-side surfaces of the second, fifth, tenth, and eleventh lenses are all aspherical. The surface shape of each aspherical lens can be defined by, but is not limited to, formula (1) given in Example 1. Table 6 below lists the conic coefficient k and higher-order coefficients A4, A6, A8, A10, A12, A14, and A16 that can be used for each aspherical mirror surface in Example 3.

[0127] Table 6

[0128] Face number k A4 A6 A8 A10 A12 A14 A16 S3 -5.37 2.84E-03 -4.72E-04 5.60E-05 -5.22E-06 3.14E-07 -1.08E-08 1.43E-10 S4 -0.06 2.82E-03 -5.05E-04 6.60E-05 -7.48E-06 6.47E-07 -3.61E-08 9.11E-10 S8 0.61 7.69E-03 -1.66E-04 2.90E-05 -3.41E-06 5.46E-07 -4.31E-08 1.69E-09 S9 -21.99 2.25E-03 -3.41E-05 5.63E-05 -1.83E-05 3.11E-06 -2.66E-07 9.93E-09 S17 0.00 -1.69E-03 2.74E-04 -1.81E-05 7.52E-07 -1.98E-08 2.96E-10 -1.91E-12 S18 -5.25 -2.58E-03 3.67E-04 -1.89E-05 6.04E-07 -1.26E-08 1.56E-10 -8.41E-13 S19 -31.95 2.85E-03 -1.34E-04 4.65E-06 -1.16E-07 1.79E-09 -1.48E-11 4.82E-14 S20 120.00 1.64E-03 -2.12E-04 1.07E-05 -2.92E-07 4.51E-09 -3.64E-11 1.17E-13

[0129] Example 4

[0130] Figure 4 FIG. 4 shows a schematic structural diagram of an optical imaging lens according to Example 4 of the present application. Figure 4 As shown, the optical imaging lens includes, from the object side to the image side along the optical axis, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a seventh lens L7, an eighth lens L8, a ninth lens L9, a tenth lens L10, and an eleventh lens L11.

[0131] The first lens L1 has negative optical power, with its object-side surface S1 being convex and its image-side surface S2 being concave. The second lens L2 has negative optical power, with its object-side surface S3 being concave and its image-side surface S4 being concave. The third lens L3 has negative optical power, with its object-side surface S5 being convex and its image-side surface S6 being concave. The fourth lens L4 has positive optical power, with its object-side surface S6 being convex and its image-side surface S7 being convex. The fifth lens L5 has negative optical power, with its object-side surface S8 being concave and its image-side surface S9 being convex. The sixth lens L6 has positive optical power, with its object-side surface S10 being convex and its image-side surface S11 being convex. The seventh lens L7 has positive optical power, with its object-side surface S12 being convex and its image-side surface S13 being convex. The eighth lens L8 has negative optical power, with its object-side surface S13 being concave and its image-side surface S14 being concave. The ninth lens element L9 has positive optical power, with a convex object-side surface S15 and a concave image-side surface S16. The tenth lens element L10 has positive optical power, with a convex object-side surface S17 and a convex image-side surface S18. The eleventh lens element L11 has positive optical power, with a convex object-side surface S19 and a concave image-side surface S20.

[0132] The third lens L3 and the fourth lens L4 form a doublet lens, and the seventh lens L7 and the eighth lens L8 form a doublet lens.

[0133] The optical lens further includes a stop STO, which may be disposed between the fifth lens L5 and the sixth lens L6.

[0134] The optical lens may further include a filter (not shown) having an object side surface and an image side surface and / or a protective glass CG having an object side surface S21 and an image side surface S22. The filter may be used to correct color deviation, and the protective glass CG may be used to protect the image sensor chip located at the imaging surface. The light from the object passes through each surface S1 to S22 in sequence and is finally imaged on the imaging surface IMA. It should be noted that the surfaces S1 to S22 are Figure 4 Not shown.

[0135] Table 7 shows the basic parameters of the optical imaging lens of Example 4, where the units of curvature radius and thickness / distance are all millimeters (mm).

[0136] Table 7

[0137]

[0138]

[0139] In Example 4, the object-side and image-side surfaces of the second, fifth, tenth, and eleventh lenses are all aspherical. The surface shape of each aspherical lens can be defined by, but is not limited to, formula (1) given in Example 1. Table 8 below lists the conic coefficient k and higher-order coefficients A4, A6, A8, A10, A12, A14, and A16 that can be used for each aspherical lens surface in Example 4.

[0140] Table 8

[0141] Face number k A4 A6 A8 A10 A12 A14 A16 S3 0.00 5.33E-04 -2.22E-04 1.96E-05 -1.14E-06 3.23E-08 0 0 S4 -0.84 -1.45E-04 -3.17E-04 3.18E-05 -2.05E-06 7.79E-08 0 0 S8 -4.20 -2.25E-03 6.72E-04 -3.71E-05 -1.86E-06 2.43E-07 6.72E-08 -8.78E-09 S9 -11.72 -2.46E-03 8.98E-04 -2.10E-06 -1.86E-05 1.20E-06 5.52E-07 -7.10E-08 S17 0.00 -2.00E-04 4.24E-06 1.43E-07 2.90E-08 -1.39E-09 4.57E-11 -6.54E-13 S18 56.55 -1.54E-03 3.21E-05 7.12E-07 -4.83E-08 9.19E-10 1.72E-11 -3.69E-13 S19 -3.66 -2.56E-04 -4.91E-06 1.13E-07 -5.47E-10 1.32E-11 6.20E-14 -3.33E-15 S20 0.00 -6.28E-06 -2.21E-05 3.70E-07 -9.86E-11 -1.25E-11 -1.91E-13 3.37E-16

[0142] Example 5

[0143] Figure 5 FIG. 5 shows a schematic structural diagram of an optical imaging lens according to Example 5 of the present application. Figure 5 As shown, the optical imaging lens includes, from the object side to the image side along the optical axis, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, a seventh lens L7, an eighth lens L8, a ninth lens L9, a tenth lens L10, and an eleventh lens L11.

[0144] The first lens L1 has negative optical power, with its object-side surface S1 being convex and its image-side surface S2 being concave. The second lens L2 has negative optical power, with its object-side surface S3 being concave and its image-side surface S4 being concave. The third lens L3 has negative optical power, with its object-side surface S5 being convex and its image-side surface S6 being concave. The fourth lens L4 has positive optical power, with its object-side surface S6 being convex and its image-side surface S7 being convex. The fifth lens L5 has negative optical power, with its object-side surface S8 being concave and its image-side surface S9 being convex. The sixth lens L6 has positive optical power, with its object-side surface S10 being convex and its image-side surface S11 being convex. The seventh lens L7 has positive optical power, with its object-side surface S12 being convex and its image-side surface S13 being convex. The eighth lens L8 has negative optical power, with its object-side surface S13 being concave and its image-side surface S14 being concave. The ninth lens element L9 has positive optical power, with a convex object-side surface S15 and a concave image-side surface S16. The tenth lens element L10 has positive optical power, with a concave object-side surface S17 and a convex image-side surface S18. The eleventh lens element L11 has positive optical power, with a convex object-side surface S19 and a concave image-side surface S20.

[0145] The third lens L3 and the fourth lens L4 form a doublet lens, and the seventh lens L7 and the eighth lens L8 form a doublet lens.

[0146] The optical lens further includes a stop STO, which may be disposed between the fifth lens L5 and the sixth lens L6.

[0147] The optical lens may further include a filter (not shown) having an object side surface and an image side surface and / or a protective glass CG having an object side surface S21 and an image side surface S22. The filter may be used to correct color deviation, and the protective glass CG may be used to protect the image sensor chip located at the imaging surface. The light from the object passes through each surface S1 to S22 in sequence and is finally imaged on the imaging surface IMA. It should be noted that the surfaces S1 to S22 are Figure 5 Not shown.

[0148] Table 9 shows the basic parameters of the optical imaging lens of Example 5, where the units of curvature radius and thickness / distance are all millimeters (mm).

[0149] Table 9

[0150]

[0151] In Example 5, the object-side and image-side surfaces of the second, fifth, tenth, and eleventh lenses are all aspherical. The surface shape of each aspherical lens can be defined by, but is not limited to, formula (1) given in Example 1. Table 10 below lists the conic coefficient k and the higher-order coefficients A4, A6, A8, A10, A12, A14, and A16 that can be used for each aspherical lens surface in Example 5.

[0152] Table 10

[0153]

[0154]

[0155] Table 11 lists the values ​​of parameters of the optical imaging lens in each of Examples 1 to 5, where FOV is in degrees (°), Fno has no unit, and the units of other parameters are all in millimeters (mm).

[0156] Table 11

[0157] Parameters / Example 1 2 3 4 5 f2 -26.167 -7.384 -11.093 -10.869 -10.959 f12 -4.348 -2.596 -2.902 -2.991 -2.999 f3 -5.649 -16.014 -12.534 -17.083 -16.907 f4 3.514 4.006 3.813 4.374 4.368 f34 6.740 5.343 5.310 5.790 9.318 f5 -9.866 -10.662 -11.532 -20.254 -21.986 f345 17.476 9.267 8.603 8.084 7.872 f6 7.806 7.453 8.081 7.615 7.663 f7 -9.012 6.033 6.790 7.253 7.298 f8 5.883 -3.745 -4.036 -3.827 -3.824 f10 13.241 15.868 8.519 72.603 103.151 f11 93.386 88.304 -34.238 19.808 19.641 fa -8.114 -5.418 -8.025 -11.659 -13.070 fb 8.963 9.000 9.758 9.509 9.667 f 4.9 5.18 4.957 5.238 5.232 TTL 31.404 31.397 31.434 31.437 31.403 FOV 166.600 165.000 165.400 165.000 165.000 H 16.53 16.46 16.52 16.49 16.51 D 15.815 15.923 16.029 15.944 16.034 BFL 2.304 2.633 2.760 3.405 2.970 Fno 2.82 2.81 2.81 2.81 2.81

[0158] In summary, the optical imaging lenses in Examples 1 to 5 respectively satisfy the relationships shown in Table 12.

[0159] Table 12

[0160]

[0161]

[0162] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. An optical imaging lens, characterized in that: Along the optical axis from the object side to the image side, they include: a first lens having negative optical power, wherein the object-side surface is convex and the image-side surface is concave; a second lens having negative optical power; a third lens having negative optical power; a fourth lens element having positive optical power; a fifth lens element having negative optical power, whose object-side surface is concave and whose image-side surface is convex; a sixth lens having positive optical power; a seventh lens having positive or negative refractive power; an eighth lens having positive or negative optical power; a ninth lens element having positive or negative optical power; a tenth lens having positive optical power; An eleventh lens having positive or negative refractive power.

2. The optical imaging lens according to claim 1, wherein: The optical imaging lens meets at least one of the following requirements: -9.8≤f3 / f≤-1.0; 0.6≤f4 / f≤1.2; 0.9≤f34 / f≤1.9; -2.3≤f345 / fa≤-0.5; Wherein, f is the total effective focal length of the optical imaging lens, f3 is the effective focal length of the third lens, f4 is the effective focal length of the fourth lens, f34 is the combined focal length of the third lens and the fourth lens, f345 is the combined focal length of the third lens, the fourth lens and the fifth lens, and fa is the combined focal length of the first lens to the fifth lens.

3. The optical imaging lens according to claim 1, wherein: The optical imaging lens satisfies: -5.5≤f2 / f≤-1.3, wherein f2 is the effective focal length of the second lens, and f is the total effective focal length of the optical imaging lens.

4. The optical imaging lens according to claim 1, wherein: The optical imaging lens satisfies the following conditions: -4.3≤f5 / f≤-1.9, wherein f5 is the effective focal length of the fifth lens element, and f is the total effective focal length of the optical imaging lens element.

5. The optical imaging lens according to claim 1, wherein: The optical imaging lens satisfies the following conditions: -2.0≤f7 / f8≤-1.0, wherein f7 is the effective focal length of the seventh lens element, and f8 is the effective focal length of the eighth lens element.

6. The optical imaging lens according to claim 1, wherein: The optical imaging lens meets at least one of the following requirements: -0.4≤f10 / f11≤5.5; 0.5≤|R112 / f11|≤8.9; Wherein, f10 is the effective focal length of the tenth lens, f11 is the effective focal length of the eleventh lens, and R112 is the curvature radius of the image-side surface of the eleventh lens.

7. The optical imaging lens according to claim 1, wherein: The optical imaging lens meets at least one of the following requirements: 0.5° / mm 2 ≤FOV / H / D≤0.8° / mm 2 ;9.2mm≤TTL×f / H≤10.1mm; Wherein, FOV is the maximum field of view of the optical imaging lens, H is the image height corresponding to the maximum field of view of the optical imaging lens, D is the maximum clear aperture of the optical imaging lens, TTL is the on-axis distance from the object side of the first lens to the imaging surface of the optical imaging lens, and f is the total effective focal length of the optical imaging lens.

8. The optical imaging lens according to claim 1, wherein: The optical imaging lens meets at least one of the following requirements: -3≤f5 / f6≤-1; -1.0≤f12 / f≤-0.4; 0.6≤f6 / fb≤1.0; -2.7≤fa / f≤-0.9; 1.6≤fb / f≤2.1 ;-1.5≤fa / fb≤-0.5; 0.3≤BFL / f≤0.8; 5.8≤|Vd3-Vd4|≤7.6; 32.8≤|Vd7-Vd8|≤50.5; Wherein, f is the total effective focal length of the optical imaging lens, f12 is the combined focal length of the first lens and the second lens, f5 is the effective focal length of the fifth lens, f6 is the effective focal length of the sixth lens, fa is the combined focal length of the first lens to the fifth lens, fb is the combined focal length of the sixth lens to the eleventh lens, BFL is the distance from the image-side surface of the eleventh lens to the imaging plane of the optical imaging lens on the optical axis, Vd3 is the Abbe number of the third lens, Vd4 is the Abbe number of the fourth lens, Vd7 is the Abbe number of the seventh lens, and Vd8 is the Abbe number of the eighth lens.

9. The optical imaging lens according to any one of claims 1 to 8, wherein: The optical imaging lens meets at least one of the following requirements: -5.4≤f2 / f≤-1.4;-0.95≤f12 / f≤-0.45;-3.26≤f3 / f≤-1.1;0.7≤f4 / f≤0.9;1.0≤f34 / f≤1.8;-4.25≤f5 / f≤-2;-2.2≤f345 / fa≤-0.55;-2.9≤f5 / f6≤-1.2;0.75≤f6 / fb≤0.9;-2.0≤f7 / f8≤-1.5;-0.3≤f10 / f11≤5.3;0.55≤|R112 / f11|≤8.8;-2.55≤fa / f≤-1;1.7≤fb / f≤2.0;-1.4≤fa / fb≤-0.55;0.6° / mm 2 ≤FOV / H / D≤0.7° / mm 2 ;9.3mm≤TTL×f / H≤10mm;0.4≤BFL / f≤0.7;5.9≤|Vd3-Vd4|≤7.5;43≤|Vd7-Vd8|≤50.4; Wherein, f is the total effective focal length of the optical imaging lens, f2 is the effective focal length of the second lens, f12 is the combined focal length of the first lens and the second lens, f3 is the effective focal length of the third lens, f4 is the effective focal length of the fourth lens, f34 is the combined focal length of the third lens and the fourth lens, f5 is the effective focal length of the fifth lens, f345 is the combined focal length of the third lens, the fourth lens and the fifth lens, fa is the combined focal length of the first lens to the fifth lens, f6 is the effective focal length of the sixth lens, f7 is the effective focal length of the seventh lens, f8 is the effective focal length of the eighth lens, f10 is the effective focal length of the tenth lens, f11 is the effective focal length of the The effective focal length of the eleventh lens, fb is the combined focal length of the sixth lens to the eleventh lens, R112 is the curvature radius of the image side surface of the eleventh lens, FOV is the maximum field of view of the optical imaging lens, H is the image height corresponding to the maximum field of view of the optical imaging lens, D is the maximum clear aperture of the optical imaging lens, TTL is the on-axis distance from the object side surface of the first lens to the imaging plane of the optical imaging lens, BFL is the distance from the image side surface of the eleventh lens to the imaging plane of the optical imaging lens on the optical axis, Vd3 is the Abbe number of the third lens, Vd4 is the Abbe number of the fourth lens, Vd7 is the Abbe number of the seventh lens, and Vd8 is the Abbe number of the eighth lens.

10. The optical imaging lens according to claim 1, wherein: The image side surface of the second lens is concave; The object side surface of the third lens is convex, and the image side surface is concave; The object-side surface of the fourth lens is convex, and the image-side surface is convex; The object-side surface of the sixth lens is convex, and the image-side surface is convex; The image side surface of the ninth lens is concave; The image-side surface of the tenth lens is a convex surface.

Images